Corner fastening device

ABSTRACT

A corner fastening device comprises a housing formed in once time and a W-type contacting surface formed by planes or cambered planes such that the present invention can be fastened to the different concave or convex fastening surfaces. Furthermore, the fastened device can be fastened on the housing of the present invention according to the receiving opening set on the housing.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a corner fastening device,especially to a new one that is suitable for any fastening surfacehaving every kind of shape, which may be a convex or a concave surface,according to the W-type contacting surface on the housing.

[0003] 2. Description of the Prior Art

[0004] In general, it is convenient and easy to fix a fastened device toa fastening surface by placing the fastened device onto the fasteningsurface or making use of a fastening design (such as making the seat ofthe object locked onto the fastening surface). However, if the fasteneddevice needs being hidden or needs getting a wide-angle (ex: a camera, asensing lump, or a detector, etc), and has to be fastened to thefastening object having a concave or a convex fastening surface, it iseasy to damage the fastening surface and the fastened device undergoingassembling or disassembling task, especially for the fastened deviceencountering problems and requiring repair frequently. Therefore, usageof the fastened device is inconvenient.

[0005] Hence it is a challenging task how to design a fastening devicesuitable for any fastening surface having different kind of shape andenabling to work in pair with different module unit of fastened devices.

[0006] From what described above, the habitually used arts still haveseveral disadvantages and require improvement.

[0007] The inventor of the present invention ruminated over thedisadvantages resulted from the habitually used method of fastening thedevice on the fastening surface, and earnestly deliberated the way ofimprovement and innovation. After studying hard for a long period, theinventor eventually succeeded in inventing the present invention, acorner fastening device.

SUMMARY OF THE INVENTION

[0008] The first purpose of the present invention is to provide a cornerfastening device, which can be fastened to an object having an angularor cambered surface, no matter the surface is concave or convex.

[0009] The second purpose of the present invention is to provide acorner fastening device containing a receiving opening, and severalposition columns thereon inside the structure of the corner fasteningdevice. The corner fastening device can be fastened to the object bylocking screws into the position columns.

[0010] The fastening device which can achieve the purposes describedabove mainly comprises a housing formed in once time which is theprinciple part of the structure, a receiving opening at one side of thehousing, an outward flange along the shape of the receiving opening, aW-type contacting surface having a opening at the lower part formed atthe other surface opposite to the surface having the receiving opening.The W-type contacting surface is formed by a pair of first contactingsurfaces and a pair of second contacting surfaces following the formingway that the first contacting surface, the second contacting surface,the second contacting surface and the first contacting surface are beconnected together in order. The two first contacting surfaces have anincluded angle of 90 degree between each other in space, or can connectto each other to form a successive cambered surface in space. Besides,at least one position hole is set on each of first contacting surfaceand second contacting surfaces. The position holes of the secondcontacting surfaces are arranged in a staggered way. At least onepositioning column is set at the both sides inside the housing in thedirection of the receiving opening. A locking hole is set on eachpositioning columns.

BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings disclose an illustrative embodiment of the presentinvention which serves to exemplify the various advantages and objectshereof, and are as follows:

[0012]FIG. 1(A) and (B) are respectively the front side view and thereverse side view of the present invention, a corner fastening device;

[0013]FIG. 2(A) and (B) are the first exemplary diagram of the cornerfastening device;

[0014]FIG. 3(A) and (B) are the second exemplary diagram of the cornerfastening device; and

[0015]FIG. 4(A)˜(C) are the diagram of the application of the cornerfastening device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0016] Referring to FIG. 1(A) and (B), the corner fastening deviceprovided from the present invention mainly comprises a housing 1 formedin once time, a receiving opening 11 at one side of the housing 1, anoutward flange 111 along the shape of the receiving opening 11, a W-typecontacting surface 12 having a opening 112 at the lower part at theother side opposite to the one having the receiving opening 11. TheW-type contacting surface 12 composes of a pair of first contactingsurfaces 121 and a pair of second contacting surfaces 122, wherein thepair of first contacting surfaces 121 have an included angle equal to 90degrees in space, while the pair of second contacting surface 122 areconnected to each other and the included angle between them is 90degrees. The composing way of the first contacting surfaces and thesecond contacting surfaces is that the first contacting surface 121, thesecond contacting surface 122, the second contacting surface 122 and thefirst contacting surface 121 are connected in order, and the includedangle between first contacting surface 121 and the second contactingsurface 122 is 90 degrees. Besides, on each first contacting surface 121and second contacting surface 122, there is a position hole 123, and theposition holes 123 are arranged in a staggered way. Besides, a pair ofpositioning columns 124 are respectively set at both sides inside thehousing 1 in the direction of receiving opening 11. A locking hole 125is set on every positioning column 124.

[0017] Referring to FIG. 2(A) and (B), when the housing 1 of the presentinvention is fastened to the object 2 (It is assumed that the concaveangle is 90 degree of the object 20), the first contacting surfaces 121can match up with the fastening surface 21 of the concave object 2 withbeing locked together by the screws 7. Then, by locking the screws 42 tothe locking holes 125 of the positioning columns 124, the seat 41, whichcan be tied in with the flange 111 of the receiving opening 11, of adevice 4 can be locked and fastened such that the device 4 connected tothe seat 41 can be fastened to the housing 1 of the present invention.Wires 43 (such as power wires or signal wires) revealed outside of thedevice 4 can be connected outward through the opening 112.

[0018] Referring to FIG. 3(A) and (B), when the housing 1 of the presentinvention is fastened to the object 3 having a convex surface (it isassumed that the convex angle of the object 3 is 90 degrees), the secondcontacting surfaces 121 can match up with the fastening surface 22 ofthe convex object 3 with being locked together by the screws 7. Then, bylocking the screws 42 to the locking holes 125 of the positioningcolumns 124, the seat 41, which can be tied in with the flange 111 ofthe contacting opening 11, of a device 4 can be locked and fastened suchthat the device 4 connected to the seat 41 can be fastened to thehousing 1 of the present invention. Similarly, wires 43 (such as powerwires or signal wires) revealed outside of the device 4 can be connectedoutward through the opening 112.

[0019] Referring to FIG. 4(A)˜(C), the W-type contacting surface of thepresent invention can be formed by not only planes, but also camberedsurfaces due to variation of the first contacting surfaces 121. Forexample, the two first contacting surfaces 121 of the housing 8 can bedesigned to form a successive cambered surface 97 in space, or the twosecond contacting surfaces 122 of the housing 9 can be connected to eachother to form a successive cambered surface 91, or the pair of firstcontacting surfaces 121 and the pair of second contacting surfaces 122of the housing 10 can be combined together and respectively formcambered surfaces 81 and 91 , and etc. Thus the object 5 having a convexcurved shape or the object 6 having a concave curved shape can beutilized with better flexibility.

[0020] Comparing with other commonly used arts, the corner fasteningdevice provided from the present invention has advantages as follows:

[0021] (1) The structure is simple, more stable and securer.

[0022] (2) The present invention can be formed in once time, and themanufacture cost is lower such that the competitiveness of industry canbe risen.

[0023] (3) The present invention is suitable for each object having aconcave or convex surface.

[0024] (4) When the fastened device is designed, the present inventioncan be designed as a part of the fastened device. The fastened devicecan be disassembled or assembled in the way of changing module unitsinstead of dismounting the whole fastened device as the commonly usedarts. Therefore, the present invention is very convenient in view ofrepair.

[0025] Many changes and modifications in the above described embodimentof the invention can, of course, be carried out without departing fromthe scope thereof. Accordingly, to promote the progress in science andthe useful arts, the invention is disclosed and is intended to belimited only by the scope of the appended claims.

What is claimed is:
 1. a corner fastening device comprising a housingformed in ones time as a main structure, a receiving opening set at oneside of said housing, and a W-type contacting surface formed at anotherside opposite to the side having said receiving opening, said W-typecontacting surface formed by a pair of first contacting surfaces and asecond contacting surfaces following a way that one said firstcontacting surface, one said second contacting surface, another saidsecond contacting surface and another first contacting surface areconnected together successively in order, at least one position holebeing set on each of said first contacting surfaces and said secondcontacting surfaces, at least one positioning column being set at bothsides inside said housing in a direction of said receiving opening.
 2. acorner fastening device as recited in claim 1, wherein an opening is setat a lower part of said W-type contacting surface.
 3. a corner fasteningdevice as recited in claim 1, wherein at least one said position holesset on said second contacting surfaces are arranged in a staggered way.4. a corner fastening device as recited in claim 1, wherein a flange isextended outward along a shape of said receiving opening.
 5. a cornerfastening device as recited in claim 1, wherein a first included anglebetween the pair of said first contacting surfaces is 90 degrees inspace.
 6. a corner fastening device as recited in claim 1, wherein thepair of said second contacting surfaces are connected successively andhave a second included angle equal to 90 degrees.
 7. a corner fasteningdevice as recited in claim 1, wherein a third included angle betweensaid first contacting surface and said second contacting surface whichare connected to each other is 90 degrees.
 8. a corner fastening deviceas recited in claim 1, wherein the pair of said second contactingsurfaces are connected as a successive cambered surface.
 9. a cornerfastening device as recited in claim 1, wherein the said firstcontacting surfaces form a successive cambered surface in space.
 10. acorner fastening device as recited in claim 1, wherein a locking hole isset on each of at least one said positioning columns.